Rarest And Most Valuable Opals In The World Opal is composed of small beads of silica â alpha-cristobalite â low temperature, but tightly closed in a waterproof casing. Between these âbeadsâ have cavities that contain a small amount of water.
Inorganic nutrients that facilitate growth and development in organisms include phosphorous, calcium, nitrogen, iron and fluorine. There are many different kinds of inorganic nutrients, and they are all characterized by their lack of carbon-to-carbon bonds.
Salt (Sodium Chloride, NaCl) is an inorganic compound. The classification of an organic compound is that it is a molecule that contains a carbon atom. Everything else can be â¦ considered inorganic. Some molecules that contain carbon are also inorganic such as carbon dioxide or calcium carbonate. + 23 others found this useful.